From a quick glance:
- insurance
- (potential?) property taxes (depending on canton?)
- own ownership tax
- opportunity cost of locked in capital
- tax deductions (favourable to the buy scenario, may change in the future)
- taking on the risk of fluctuating interest rates
- ownership hassle vs carelessness of renting (you are the one who has to call the plumber if a pipe breaks, maintenance costs are not regular, they’re 0% most of the time, then may be a big amount because you need to redo the roof, etc.)
- potential issues with the neighbors that can get emotional and aren’t always easy to deal with as moving away isn’t an easy option.
Example in a co-ownership scenario: Problem with neighbor :) The same can happen for single properties regarding access (both to your house and from people passing on your land without your approval), the limits of the parcel, trees/bushes/fences at said limit, people not tending to their garden, etc.
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Mortgage duration: 10 years are popular, shorter are possible, ultrashort SARON allowing for quick termination are offered by some banks (but not all, do check if your targeted banks do so before getting serious in working with them if you’re interested in them). You won’t find very long durations. Others will have more expertise than I do on the topic.
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The general rule is that 2/3 (often rounded down to 65%) of the property value can be borrowed without a need for amortization. Any borrowing on top of that must be amortized within 15 years (1% of the value of the property per year if you borrow the max 80%). Actual conditions may vary (my bank is handling this in a pretty weird way for my current property, which they deem hard to assess the value of (older single property in a remote location)).
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Are you assessing the wealth tax or the property tax?
What usually makes renting more attractive than buying for mustachians, and that people not interested in stocks often miss, is the opportunity cost. If you don’t take it into account and account for low interest rates, owning can very well come on top (doubly so for the average swiss person who doesn’t save a dime if they don’t have to, in which case, amortization can be considered forced savings).